79 citations · 1.4k across the 37 of their papers we have counts for
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Two-channel Kondo physics in two-impurity Kondo models
Andrew K. Mitchell, Eran Sela, David E. Logan
We consider the non-Fermi liquid quantum critical state of the spin-S two-impurity Kondo model, and its potential realization in a quantum dot device. Using conformal field theory…
Real-space renormalization group flow in quantum impurity systems: local moment formation and the Kondo screening cloud
Andrew K. Mitchell, Michael Becker, Ralf Bulla
The existence of a length-scale (with the Kondo temperature) has long been predicted in quantum impurity systems. At low temperatures , the standard…
Two-channel Kondo physics in odd impurity chains
Andrew K. Mitchell, David E. Logan, H. R. Krishnamurthy
We study odd-membered chains of spin-(1/2) impurities, with each end connected to its own metallic lead. For antiferromagnetic exchange coupling, universal two-channel Kondo (2CK)…
Exact crossover Green function in the two-channel and two-impurity Kondo models
Eran Sela, Andrew K. Mitchell, Lars Fritz
Symmetry-breaking perturbations destabilize the critical points of the two-channel and two-impurity Kondo models, thereby leading to a crossover from non-Fermi liquid behavior to s…